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No. 6l3,422. V Patented Nov. l, I898. C. K. PICKLES.

STEP-OVER CAR 'SEAT.

7 (Application filed Oct. 20, 1-897.)

(No Model.) 2 Sheets-Sheet l. f

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STEP-OVER CAR SEAT.

(Application filed dct. 20, 1897.)

(No Model.) 2 Sheets-Sheet 2. J6 5' 7 7 I I 18 1a' 6 l' I? T; 18 ll 16- ill ma nonms PETERS on. FHOTO-LITHO. wAsumsT' u, u c.

K UNITED STATES PATENT Fries.

CHARLES K. PIOKLES, OF ST. LOUIS, MISSOURI, ASSIGNOR TO SAMUEL M.

DODD, OF SAME PLACE.

STEP-OVER CAR-SEAT.

SPECIFICATION forming part of Letters Patent No. 613,422, dated November 1, 1898.

Application filed. October 20, 189 7. $erial No. 655,815. (No model.)

T0 on whom it mayconcern:

Be it known that 1, CHARLES K. PIOKLES, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Step- Over Oar-Seats; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification.

The present invention relates more especially to a step-over railway-car seat or chair the back of which in a reversed movement moves across the seat portion, while such seat portion tilts or rocks in unison with the stepover movements of the back to preserve the proper slope or inclination of the seat toward such back in either of its two positions.

The objects of the presentimprovements are to provide a simple,substantial, and effective mechanism whereby the proper movements of the back and seat are attained in aready and effective manner and with which the full width of the seat from'front to back is effectively presented for use with no loss beneath the step-over back, so that the chairs can be arranged with less distance between their centers than with the usual form of chairs and yet attain a maximum space between the seats when the same are arranged to face each other. I attain such objects by the mechanism illustrated in the accompanying drawings, in whicl1-- Figure 1 is a side elevation of a step-over chair embodying the present invention, one

position of the step-over back being shown in full lines and the other position in dotted lines; Fig. 2, a detail longitudinal section at line 2 2, Fig. 5, illustrating the relative positions of the parts when the step-over back is midway of its step-over movement; Fig. 3, a detail side elevation showing the parts in a reversed position to that shown in full lines in Fig. 1; Fig. 4, a detail longitudinal section at line at 4, Fig. 1; Fig. 5, a horizontal sectionat line 5 5, Fig. 2, with the seat removed; Fig. 6, a detail side elevation of a' modification; Fig. 7, a detail longitudinal section of the same, with the parts in a reversed position to that shown in Fig. 6.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 represents the seat proper, and 2 the carrying-frame therefor, which in the construction shown in the drawings is formed at each end of the seat with a slot 3, in which the projecting lugs of the rocking arms, hereinafter described, have movement. Such frame also has pivotal connection by pivot-journals 4 with the chairbase or supportingstandard, so as to be capable of a limited tilting or rocking movement. 5 shows the supporting standards that, when the two end ones are employed, are connected together by one or more tie or connecting bars 6.

7 is the step-over chair-back that in the present invention is of a straight formation and upholstered or otherwise finished on both sides or surfaces.

8 are combined guide, pivot, and stop plates fixedly attached to the standards 5 in any suitable manner, preferably by being secured to the respective terminals of the tie bar or while their lower ends are formed or provided with sector-shaped ends 13, concentric with the guide-lugs 10, and preferably of a toothed nature, as shown, and which are adapted to engage and move upon a correspondinglyformed track 14, either upon the end plates 2 of the seat-frame, as illustrated in Figs. 1, 2, 3, 4, and 5, or upon the lower portion of the fixed guide and pivot plate 8, heretofore mentioned, as illustrated in Figs. 6 and 7. The engagement of the parts is such that the lower ends of the rocking arms will move in the same direction as the upper ends, so that the arms may be of a shorter nature than the arms heretofore employed in the present class of step-over car-seats.

In the construction illustrated in Figs. 1, 2, 3, 4, and 5 the aforesaid track 14 being arranged on the end plates of the seat-frame the slots 3 in said end plates will be concentric with the tracks 14, so that the guide-lugs 10 on the rocking arms will have proper movement in said slots as the sector ends of the arms roll upon the tracks. The companion slots 9 in the end plates 8 will in such construction be non-concentric with the tracks 14, and accordingly with the movement of one or the other of the pair of operating-lugs 10 toward one end or the other of the slots 9 the seat-frame will be correspondingly rocked or tilted, so as to attain the proper inclination of the seat relative to the step-over back.

\Vith the construction illustrated in Figs. 6 and 7, in which the aforesaid tracks 14 are arranged on the fixed plates 8, the guide-slot 9 will be concentric with said tracks to permit of proper movement of the rocking arms and their lugs 10. The companion slot 3 in the end plates of the seat-frame will be nonconcentric with said tracks in order that with the movement of one or the other of the pair of operating-lugs 10 toward one end or the other of slots-3 the seat-frame will be correspondingly rocked or tilted, so as to assume the proper inclination of the seat relative to the step-over back of the chair. I have shown such non concentric slots in the different views as of a curved nature, in the first construction being of a less curvature and in the other of a greater curvature than said curved track 14, as being the most desirable. Any other suitable form may,however,be imparted thereto without departing from the spirit of this part of my present invention.

The rocking arms 11 at opposite ends of the seats will usually be connected together by cross connecting-shafts 15, that will preferably pass through and be secured in orifices through the operati11g-lugs 10 of said arms, as illustrated in Figs. 2 and 4 of the drawings, and thus attain a more uniform action of the parts than would be the case were the same left unconnected.

16 are stop-lugs upon the seat, carrying end plates 2, against which the rocking arms 11 of the step-over back abuts to aid in limiting the movement of said parts, such limitation being also performed by the ends of the slots in the end plates heretofore described.

17 are rest lugs or ledges upon the end plates 2 to form a support for the seat proper,1.

In the construction shown in Figs. 1, 2, 3, and 4 the journal-pivot 4 for the seat-carrying end plate 2 is shown as in line with the center of the guide-slots in said plate and the companion plate 8. As so arranged the said pivot-trunnion will be of an enlarged nature and cut away centrally, as shown, so as to form a continuation of the aforesaid slots and permit of the passage ortravelof the operating-lugs of the rocking arms, heretofore described. Such arrangement of the journal pivots or trunnions for the tilting seat of the present invention is the one preferred for most uses. In some cases, however, it is desirable to arrange such pivots otherwise, which can be readily effected by means of centrally-arranged and upwardly-extending lugs on the respective parts that are formed to receive the pivot parts, as illustrated in Figs. 6 and 7.

The fixed plates 8, when formed with guide slots 9 instead of recesses,will have such slots covered from view, &c., by a plate 18, as illustrated in Figs. 4 and 5.

A minor feature of the present improve ment lies in the formation of concentric slots in the end plates of a slightly-greater length than the non-concentric slots in said plates, so that the operating-lugs on the rock-arms will tend to bottom in said non-concentric slots, and thus tend to lock the seat in position as the step-over back reaches either of its positions.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a step-over car-seat, the combination of a base or standard provided with a track, a tilting seat, a step-over back, means for supporting said back comprising concurrentlymoving arms at each end of the seat adapted to bear and have a rolling movement from one side to the other upon a supporting-track, and means whereby the lower ends of said arms are caused to travel in the same direction as the upper ends thereof, substantially as set forth.

2. In a step-over car-seat, the combination of a base or standard provided with atrack, a tilting seat, a step-over back, means forsupporting said back comprising concurrentlymoving arms at each end of the seat adapted to bear and have a rolling movement from one side to the other upon supporting-tracks having a curved formation, and means whereby the lower ends of said arms are caused to travel in the same direction as the upper end thereof, substantially as set forth.

In a step-over oar-seat, the combination of a base or standard provided with a track, a tilting seat, a step-over back, means forsupporting said back comprising concurrentlymoving arms at each end of the seat having sector-shaped lower ends that are adapted to bear and have a rolling movement from one side to the other upon a supporting-track, and means whereby the lower ends of said arms are caused to travel in the same direction as the upper ends thereof, substantially as set forth.

4. In a step-over car-seat, the combination of a base or standard provided with a track, a tilting seat, a step-over back, means for sup porting said back comprising concurrentlymoving arms at each end of the seat having toothed sector-shaped ends adapted to bear and have a rolling movement from one side to the other upon a toothed supporting-track, whereby the lower ends of said arms are caused to travel in the same direction as the upper ends thereof, substantially as set forth.

5. In a step-over car-seat, the combination of a base or standard having a-plate portion formed with a guide-slot, apivoted seat having a plate portion formed with a guide-slot, a step-over back, and means for supporting said back comprising a pair of arms adapted to travel from one side to the other on a supporting-track, and provided with projecting lugs to engage in said guide-slots, one of said slots having a formation differing from that of the other, substantially as set forth.

6. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a curved guide-slot a pivotal seat having a plate portion formed with a curved guide-slot, a step-over back, and means for supporting said back comprising a pair of arms adapted to travel from one side to the other on a supporting-track and provided with projecting lugs to engage in said guideslots, one of said slots having a curved formation differing from that of the other, substantially as set forth.

7. In a step-over car-seat, the combination of a base or standard ,having a plate portion formed with a guide-slot, a pivoted seat having a plate portion formed with a guide-slot, a step-over back, and means for supporting said back comprising a pair of arms having sector-shaped ends adapted to travel from one side to the other on a supporting-track, and provided with projecting lugs to engage in said guide-slots, one of said slots having a formation different from that of the other, substantially as set forth.

8. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a guide-slot, a pivoted seat having a plate portion formed with a guide-slot, a step-over back, and means for supporting said back comprising a pair of arms having toothed sector-shaped ends adapted to travel from one side to the other on a toothed supporting-track, and provided with projecting lugs to engage in said guide-slots one of said slots having a formation different from that of the other, substantially as set forth.

9. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a guide-slot, a seat pivoted to said standard, and having a plate portion formed with a guide-slot and a track or rail, a step-over back, and means for supporting said back comprising a pair of arms, connected at their upper ends to said back, with their lower ends adapted to travel from one side to the other on said track and provided with projecting lugs to engage in said guide-slots one of said guide-slots having aformation different from that of the other, substantially as set forth.

10. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a curved guide-slot, a seat pivoted to said standard and having'a plate portion formed with a curved guide-slot, and a curved track or rail, a step-over back, and

means for supporting said back comprising a said standard-and having a plate portionformed with a guide-slot and a track or rail, a step-over back, and means for supporting said back, comprising a pair of arms connected at their upper ends to said back, with their lower ends of a sector shape adapted to travel from one side to the other on said track, and provided with projecting lugs to engage in said guide-slots, one of said guide-slots having a formation differing from that of the other, substantially as set forth.

12. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a guide-slot, a seat pivoted to said standard and having a plate portion formed with a guide-slot and a toothed track, a step-over back, and means for supporting said back comprising a pair of arms connected at their upper ends to said back, With their lower ends of a toothed-sector shape adapted to travel from one side to the other on said track, and provided with projecting lugs to engage in said guide-slots, one of said guide-slots having a formation different from that of the other, substantially as set forth.

13. In a step-overcar-seat, the combination of a base or standard having a plate portion formed with a curved guide-slot, a seat pivoted to said standard and having a plate portion formed with a curved guide-slot, and a curved track, a step-over back, and means for supporting said back comprising a pair of arms connected at their upper ends to said back, with their lower ends of a sector shape adapted to travel from one side to the other on said track, and provided with projecting lugs to engage in said guide-slots, one of said guide-slots having a formation different from that of the other, substantially as set forth.

14. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a curved guide-slot, a seat pivoted to said standard and having a plate portion formed with a curved slot, and a toothed curved track, a step-over back, and means for supporting said back, comprising a pair of arms connected at their upper ends to said back, with their lower ends of a toothed sec- 15. In astep-over car-seat, the combination of a base or standard having a plate portion formed with a guide-s1ot,a seat pivoted to said standard and having a plate portion formed with a guide-slot and a track or rail, a stepover back, and means for supporting said back comprising a pair of arms connected at their upper ends to said back with their lower ends adapted to travel from one side to the other on said track and provided with projecting lugs to engage in said guide-slots the pivot-trunnion of the seat being arranged in line with the slots, and cutaway to form a portion of such slots, substantially as set forth.

16. In a step-overcar-seat, the combination of a base or standard having a plate portion formed with a guide-slot, a seat pivoted to said standard and having a plate portion formed with a guide-slot and a track or rail, a stepover back, and means for supporting said back comprising a pair of arms connected at their upper ends to said back with their lower ends adapted to travel from one side to the other on said track and provided with projecting lugs to engage in said guide-slots, one of said slots being made longer than the other, so as to insure the bottoming of the lugs in the shorter slot, substantially as setforth.

17. In a step-over car-seat, the combination of a base or standard having a plate portion formed with a guide-slot, aseat pivoted to said standard and having a plate portion formed with a guide-slot, stop-lugs and atrack or rail, a step-over back, and means for supporting said back comprising apair of arms connected at their upper ends to said back, with their lower ends adapted to travel from one side to the other on said track, and provided with projecting lugs to engage in said guide-slots,

one of said guide-slots havingaformation different from that of the other, substantially as set forth.

18. Ina step-over car-seat, the combination of a base or standard having a plate portion formed with a guide-slot, a plate covering the outer side of said slot, a seat pivoted to said standard and having a plate portion formed with a guide-slot and a track or rail, a stepover back, and means for supporting said back comprising a pair of arms connected at their upper ends to said back, with theirlower ends adapted to travel from one side to the other on said track, and provided with pro- 3' ectin g lugs to engage in said guide-slots, one of the guide-slots having a formation different from that of the other, substantially as set forth.

19. In astep-over car-seat, the combination of a base or standard having plate portions formed with guide-slots, a seat pivoted to said standard and having plate portions formed with guide-slots and tracks or rails, a stepover back, and means for supporting said back comprising a pair of arms at each end of the seat, each pair being connected at their upper ends to said back. with their lower ends adapted to travel from one side to the other on said tracks and provided with projecting lugs to engage in said guide-slots, the lower ends of the arms at opposite ends of the seat being connected together by shafts so as to travel in unison, substantially as set forth.

In testimony whereof Witness my hand this 15th day of October, 1897.

CHARLES K. PICKLES.

In presence of H. G. GILMORE, Gno. E. HOWARD. 

